WO2011083858A1 - 3,4-ジ置換ピロリジン誘導体の製造方法及び製造中間体 - Google Patents
3,4-ジ置換ピロリジン誘導体の製造方法及び製造中間体 Download PDFInfo
- Publication number
- WO2011083858A1 WO2011083858A1 PCT/JP2011/050206 JP2011050206W WO2011083858A1 WO 2011083858 A1 WO2011083858 A1 WO 2011083858A1 JP 2011050206 W JP2011050206 W JP 2011050206W WO 2011083858 A1 WO2011083858 A1 WO 2011083858A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- group
- optionally substituted
- general formula
- enantiomer
- salt
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D207/04—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members
- C07D207/10—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/40—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/04—Antibacterial agents
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D207/04—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members
- C07D207/08—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members with hydrocarbon radicals, substituted by hetero atoms, attached to ring carbon atoms
- C07D207/09—Radicals substituted by nitrogen atoms, not forming part of a nitro radical
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D207/04—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members
- C07D207/10—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D207/14—Nitrogen atoms not forming part of a nitro radical
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups
Definitions
- the present invention not only shows a safe and strong antibacterial action, but is also effective against 7- (3- (N-substituted-aminomethyl) -4-
- the present invention relates to a novel method for producing an optically active form of 3- (N-substituted-aminomethyl) -4-fluoropyrrolidine, which is a useful intermediate for the production of (fluoropyrrolidinyl) quinolonecarboxylic acid derivatives, and a production intermediate thereof.
- Patent Documents 1 and 2 disclose 10- (3-cyclopropylaminomethyl-4-substituted-1-pyrrolidinyl) pyridobenzoxazinecarboxylic acid as an antibacterial agent having excellent antibacterial activity against resistant bacteria and having high safety. Derivatives, 7- (3-cyclopropylaminomethyl-4-substituted-1-pyrrolidinyl) quinolone carboxylic acid derivatives are disclosed.
- Patent Documents 3 and 4 further describe an improved synthesis method of (3R, 4S) -3-cyclopropylaminomethyl-4-fluoropyrrolidine. These improved synthesis methods have fewer steps than conventional methods. However, with respect to Patent Document 3, all the intermediates are oily substances, and purification is not easy. Further, Patent Document 4 has a problem that the amino group needs to be protected before the fluorination reaction, and the protection and deprotection steps are excessive, resulting in a decrease in yield.
- Patent Documents 5 and 6 Non-Patent Documents
- Non-patent Document 3 a method using a hydrogen fluoride pyridine complex
- Patent Document 7 a method using a sulfur tetrafluoride derivative
- Methods using sulfur tetrafluoride and liquefied hydrogen fluoride have been reported.
- Non-Patent Document 3 has a problem that the yield is relatively good, but it takes several days to complete the reaction.
- Patent Document 7 benzyl 2-hydroxyethylamine derivative is converted into benzyl 2-fluoroethylamine derivative using (diethylamino) sulfur trifluoride (DAST) which is a sulfur tetrafluoride derivative. It is as low as 17%.
- DAST diethylamino sulfur trifluoride
- Non-Patent Documents 4 and 5 describe a method in which sulfur tetrafluoride is reacted in liquefied hydrogen fluoride at ⁇ 78 ° C. to obtain a fluorinated amine. From rearrangement of the fluorination position, 4-hydroxypiperidine is converted to 4- Fluoropiperidine is generated, and when an optically active raw material is used, the optical purity of the product is lowered.
- the present invention includes the following inventions. 1. Including a fluorination step of fluorinating a 4-hydroxy-3- (N-substituted-aminomethyl) pyrrolidine derivative represented by the following general formula (1) or an enantiomer thereof with a sulfur tetrafluoride derivative. A method for producing a compound represented by the general formula (2) or an enantiomer thereof, or a salt thereof.
- PG represents an amino-protecting group
- R 1 represents an optionally substituted C1-C6 alkyl group or an optionally substituted C3-C8 cycloalkyl group.
- PG represents an amino-protecting group
- R 1 represents an optionally substituted C1-C6 alkyl group or an optionally substituted C3-C8 cycloalkyl group.
- an acid is added to obtain a salt of the compound represented by the general formula (2) or an enantiomer salt thereof, and then a step of further purifying the salt, the HPLC relative purity is 98% 2.
- Step 1 By fluorinating a 4-hydroxy-3- (N-substituted-aminomethyl) pyrrolidine derivative represented by the following general formula (1) or an enantiomer thereof with a sulfur tetrafluoride derivative, A compound represented by the following general formula (2) obtained in the fluorination step (step 2) step 1 to obtain a compound represented by the following general formula (2) or an enantiomer thereof, or a salt thereof, or a mirror image thereof.
- step 2 By fluorinating a 4-hydroxy-3- (N-substituted-aminomethyl) pyrrolidine derivative represented by the following general formula (1) or an enantiomer thereof with a sulfur tetrafluoride derivative, A compound represented by the following general formula (2) obtained in the fluorination step (step 2) step 1 to obtain a compound represented by the following general formula (2) or an enantiomer thereof, or a salt thereof, or a mirror image thereof.
- step 3 By fluorinating a 4-hydroxy-3- (N-substi
- PG represents an amino-protecting group
- R 1 represents an optionally substituted C1-C6 alkyl group or an optionally substituted C3-C8 cycloalkyl group.
- PG represents an amino-protecting group
- R 1 represents an optionally substituted C1-C6 alkyl group or an optionally substituted C3-C8 cycloalkyl group.
- R 1 represents an optionally substituted C1-C6 alkyl group or an optionally substituted C3-C8 cycloalkyl group. ] 4).
- the hydrogen fluoride source is a hydrogen fluoride pyridine complex or triethylamine pentahydrofluoride. 7). 7.
- PG represents an amino-protecting group
- R 1 represents an optionally substituted C1-C6 alkyl group or an optionally substituted C3-C8 cycloalkyl group.
- PG represents an amino-protecting group
- R 1 represents an optionally substituted C1-C6 alkyl group or an optionally substituted C3-C8 cycloalkyl group.
- the compound represented by the general formula (3) or its enantiomer can be efficiently produced under mild conditions.
- the compound represented by the general formula (3) or an enantiomer thereof can be produced in a large amount at a low cost.
- the present invention relates to a fluorination step of fluorinating a 4-hydroxy-3- (N-substituted-aminomethyl) pyrrolidine derivative represented by the following general formula (1) or an enantiomer thereof with a sulfur tetrafluoride derivative. And a process for producing a compound represented by the following general formula (2) or an enantiomer thereof, or a salt thereof.
- PG represents an amino-protecting group
- R 1 represents an optionally substituted C1-C6 alkyl group or an optionally substituted C3-C8 cycloalkyl group.
- the amino group bonded to R 1 in the compound represented by the general formula (1) is not protected, and is preferably not a salt such as hydrochloride.
- PG represents an amino-protecting group
- R 1 represents an optionally substituted C1-C6 alkyl group or an optionally substituted C3-C8 cycloalkyl group.
- this invention provides the manufacturing method of the compound represented by the following general formula (3) including the process 1 and the process 2, or its enantiomer, or those salts.
- Step 1 By fluorinating the 4-hydroxy-3- (N-substituted-aminomethyl) pyrrolidine derivative represented by the general formula (1) or an enantiomer thereof with a sulfur tetrafluoride derivative, The compound represented by the general formula (2) obtained in the fluorination step (step 2) step 1 to obtain the compound represented by the general formula (2) or an enantiomer thereof, or a salt thereof, or a mirror image thereof.
- R 1 represents an optionally substituted C1-C6 alkyl group or an optionally substituted C3-C8 cycloalkyl group.
- the “protecting group for amino group” is not particularly limited as long as it is a protecting group generally known as a protecting group for amino group, and examples thereof include benzyl group and paramethoxybenzyl.
- Aralkyl groups such as methoxycarbonyl group, ethoxycarbonyl group, propyloxycarbonyl group, isopropyloxycarbonyl group, butyloxycarbonyl group, isobutyloxycarbonyl group and t-butyloxycarbonyl group, benzyloxycarbonyl group 1 such as aralkoxycarbonyl group such as p-methoxybenzyloxycarbonyl group and p-nitrobenzyloxycarbonyl group, methoxymethyl group, methoxyethoxymethyl group, 1- (ethoxy) ethyl group and methoxyisopropyl group (Alkoxy) alkyl group and acetyl group, trifluoroacetyl group, a pro
- an aralkoxycarbonyl group or an alkoxycarbonyl group is particularly preferable, and an aralkoxycarbonyl group is more preferable.
- a particularly preferred protecting group is a benzyloxycarbonyl group.
- the “optionally substituted C1-C6 alkyl group” means a halogen atom, a hydroxyl group, a cyano group, a C1-C6 alkoxy group, or an optionally substituted group.
- the “C1-C6 alkyl group” means a linear or branched lower alkyl group.
- Examples of the C1-C6 alkyl group include a methyl group, an ethyl group, a propyl group, a 1-methylethyl group, a 1-methylpropyl group, a 2-methylpropyl group, a 1-ethylpropyl group, a 2-ethylpropyl group, Examples thereof include a butyl group and a hexyl group. Among these, an ethyl group is preferable.
- C1-C6 alkoxy group examples include a methoxy group, an ethoxy group, a butoxy group, and a hexyloxy group.
- the “optionally substituted aryloxy group” is a group consisting of a halogen atom, a hydroxyl group, a cyano group, a nitro group, a C1-C6 alkyl group, a C1-C6 alkoxy group, and a C1-C6 alkylthio group.
- aryloxy group examples include a phenoxy group and a naphthyloxy group.
- C1-C6 alkylcarbonyl group examples include formyl group, acetyl group, propionyl group, butyryl group, isobutyryl group, valeryl group and isovaleryl group.
- C1-C6 alkoxycarbonyl group examples include a methoxycarbonyl group, an ethoxycarbonyl group, and a tert-butoxycarbonyl group.
- C1-C6 alkylthio group examples include a methylthio group, an ethylthio group, a propylthio group, and an isopropylthio group.
- the “mono- or di-substituted C1-C6 alkylamino group” means a halogen atom, hydroxyl group, cyano group, C1-C6 alkoxy group, C1-C6 alkylthio group, amino group, 1 to 3 heteroatoms
- C1-C6 alkylamino group examples include the methylamino group, ethylamino group, n-propylamino group, n-butylamino group, sec-butylamino group, n-pentylamino group and n-hexylamino group. Groups and the like.
- the “C4 to C9 cyclic amino group” means a cyclic amino group containing one or more nitrogen atoms in the ring and optionally having an oxygen atom or a sulfur atom in the ring.
- Examples of the C4-C9 cyclic amino group include an aziridyl group, a pyrrolidyl group, a piperidyl group, a morpholyl group, an oxazolyl group, an azabicycloheptyl group, and an azabicyclooctyl group.
- C1-C6 alkylcarbonylamino group examples include acetylamino group, propionylamino group, butyrylamino group, and the like.
- C1-C6 alkoxycarbonylamino group examples include a methoxycarbonylamino group, an ethoxycarbonylamino group, a t-butoxycarbonylamino group, and a hexyloxycarbonylamino group.
- C1-C6 alkylsulfonylamino group examples include a methylsulfonylamino group and an ethylsulfonylamino group.
- arylsulfonylamino group examples include, for example, a halogen atom, a hydroxyl group, a cyano group, a nitro group, a C1-C6 alkyl group, a C1-C6 alkoxy group, and a C1-C6 alkylthio group.
- arylsulfonylamino group optionally having 1 to 5 substituents selected from the group consisting of
- arylsulfonylamino group examples include a phenylsulfonylamino group, a 4-methylphenylsulfonylamino group, and a naphthylsulfonylamino group.
- Examples of the “optionally substituted C3 to C8 cycloalkyl group” include, for example, a halogen atom, a hydroxyl group, a cyano group, a C1 to C6 alkoxy group, an optionally substituted aryloxy group, and a C1 to C6.
- alkylcarbonyl group a C1-C6 alkoxycarbonyl group, a C1-C6 alkylthio group, an amino group, a mono- or di-substituted C1-C6 alkylamino group, and C4 which may contain 1 to 3 heteroatoms -C9 cyclic amino group, formylamino group, C1-C6 alkylcarbonylamino group, C1-C6 alkoxycarbonylamino group, C1-C6 alkylsulfonylamino group and optionally substituted arylsulfonylamino group A C3 to C8 cyclo optionally having 1 to 5 substituents selected from the group Alkyl group, and the like.
- the “C3-C8 cycloalkyl group” means an alkyl group having a cycloalkyl ring.
- Examples of the C3-C8 cycloalkyl group include a cyclopropyl group, a cyclopropylmethyl group, a cyclobutyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, and a cyclooctyl group.
- Step 1 includes fluorinating a 4-hydroxy-3- (N-substituted-aminomethyl) pyrrolidine derivative represented by the above general formula (1) or an enantiomer thereof with a sulfur tetrafluoride derivative. This is a step of converting a hydroxyl group of the compound represented by the general formula (1) or an enantiomer thereof into a fluorine group.
- the sulfur tetrafluoride derivative functions as a fluorinating agent.
- the “sulfur tetrafluoride derivative” include (dimethylamino) sulfur trifluoride (Methyl DAST), (diethylamino) sulfur trifluoride (DAST), morpholino sulfur trifluoride (Morpho-DAST), and bis (2-methoxyethyl). ) Amino sulfur trifluoride (Deoxo-Fluor) and the like.
- Morpho-DAST morpholino sulfur trifluoride
- Deoxo-Fluor bis (2-methoxyethyl) aminosulfur trifluoride
- the amount of the sulfur tetrafluoride derivative it is usually preferable to use 1.0 to 10 times mol of the compound represented by the general formula (1).
- the amount of the fluorinating agent can be reduced by adding a hydrogen fluoride source or water.
- the amount of the fluorinating agent used can be reduced to 1.0 to 1.5 equivalents relative to the compound represented by the general formula (1), and the cost can be reduced.
- the fluorination reaction in the fluorination step is accelerated by the presence of a hydrogen fluoride source or water, and 75% or more is completed within 24 hours, and 90% or more is completed under more preferable conditions.
- the reaction promoting effect is enhanced by adding the sulfur tetrafluoride derivative after adding water or a hydrogen fluoride source.
- water may be added to the reaction system, or a solvent containing moisture may be used. The presence of water in the reaction system accelerates the reaction.
- Water includes not only water added later to the reaction solvent, but also water already present in the reaction solvent.
- the amount of water added or the water content in the solvent is preferably 1,000 to 8,000 ppm.
- Hydrofluoride source means a salt or complex composed of hydrogen fluoride or an organic base that generates free hydrogen fluoride and hydrogen fluoride.
- examples of the hydrogen fluoride source include triethylamine hydrofluoride, hydrogen fluoride pyridine complex, hydrogen fluoride-melamine complex, and the like.
- triethylamine hydrofluorate having free hydrogen fluoride is preferable in terms of accelerating the reaction and reducing the amount of sulfur tetrafluoride derivative, and particularly triethylamine pentahydrofluoride. Salts are preferred.
- triethylamine trihydrofluoride since it does not have excess hydrogen fluoride with respect to triethylamine, the reaction acceleration effect is not seen.
- the amount of the hydrogen fluoride source to be used is usually preferably 1 to 10 times equivalent to the compound represented by the general formula (1), more preferably 3 equivalents or more in terms of accelerating the reaction. More than equivalent is more preferable.
- a reaction solvent may or may not be used.
- a reaction solvent it is not particularly limited as long as it is stable under the reaction conditions and is inert and does not hinder the reaction.
- reaction solvent examples include solvents such as acetonitrile, toluene, tetrahydrofuran, chloroform, methylene chloride, and ethyl acetate. Of these, toluene and acetonitrile are preferred.
- the reaction solvent is appropriately selected according to the ease of reaction, and used alone or in combination. In some cases, an appropriate dehydrating agent or drying agent is used as a non-aqueous solvent.
- the amount of the reaction solvent to be used is not particularly limited, but is preferably 2.5 to 20 times the weight of the compound represented by the general formula (1) or a salt thereof.
- the reaction temperature is preferably in the range of ⁇ 78 ° C. to the boiling point of the solvent used, and more preferably ⁇ 10 to 30 ° C.
- liquid hydrogen fluoride is not used, and therefore a low temperature condition such as ⁇ 78 ° C. is not necessarily required.
- the compound After completion of the fluorination reaction, the compound can be converted to a salt of the compound represented by the general formula (2) or an enantiomer salt thereof by adding an acid.
- the acid examples include hydrogen chloride, hydrochloric acid, hydrobromic acid, hydroiodic acid, trifluoroacetic acid, trifluoromethanesulfonic acid, methanesulfonic acid, and toluenesulfonic acid. Of these, hydrogen chloride or hydrochloric acid is preferred.
- the obtained salt can be purified and isolated by using usual separation means (for example, extraction, recrystallization, chromatography, etc.). Under more preferable conditions, a salt of the compound represented by the general formula (2) having an HPLC relative purity of 98% or more or an enantiomer salt thereof can be obtained.
- Solvents that can be used for purification by recrystallization include, for example, water, methanol, ethanol, ethyl acetate, diisopropyl ether, 2-propanol, acetonitrile, chloroform, N, N-dimethylformamide, dimethyl sulfoxide, N-methylpyrrolidone, Mention may be made of methyl ethyl ketone, tetrahydrofuran and tetrahydropyran.
- alcohol, ether and ethyl acetate are preferable, and methanol, ethanol, diisopropyl ether and ethyl acetate are more preferable.
- solvents can be used singly or in combination.
- step 2 the compound represented by the above general formula (2) obtained in step 1 or an enantiomer thereof, or a protecting group (PG) on the amino group of the salt thereof is removed by deprotection and removed.
- the removal of the protecting group on the amino group of the compound represented by the general formula (2) or an enantiomer thereof, or a salt thereof can be performed by appropriately adopting a method described in the literature (Green). , T.W;... Wuts, P.G.M "Protective Groups in Organic Synthesis", 2 nd Ed, Wiley Interscience Publication, John-Weiley & Sons, New York, 1991, p309-348)..
- the protecting group is an aralkoxycarbonyl group and an aralkyl group
- the protecting group (PG) is an aralkoxycarbonyl group such as a benzyloxycarbonyl group, and an aralkyl group such as a benzyl group and a paramethoxybenzyl group
- PG aralkoxycarbonyl group
- aralkyl group such as a benzyl group and a paramethoxybenzyl group
- Examples of the catalyst to be used include palladium catalysts such as palladium carbon, palladium alumina, palladium black and palladium oxide. Of these, palladium carbon is preferable.
- Examples of the hydrogen source include hydrogen and formic acid / triethylamine system, formic acid / ⁇ -phenethylamine system, formic acid / triphenylamine system, and 2-propanol. Of these, hydrogen is preferable.
- the hydrogen pressure of the reaction is usually preferably from normal pressure to 100 atm, more preferably from normal pressure to 10 atm, and even more preferably normal pressure.
- a solvent examples include alcohols such as methanol, ethanol, t-butyl alcohol, ethylene glycol and diethylene glycol, ethers such as water, tetrahydrofuran, cyclopentyl methyl ether, dioxane, dimethoxyethane and diglyme, benzene, toluene and xylene. Mention may be made of aromatic compounds, esters such as methyl acetate, ethyl acetate, isopropyl acetate, butyl acetate, hydrocarbons such as hexane, heptane and cyclohexane, and mixtures thereof. Among these, alcohols are preferable and ethanol is more preferable.
- the reaction temperature is usually preferably in the range of the boiling point of the solvent used from 0 ° C., more preferably in the range of the boiling point of the solvent used from room temperature.
- acids such as sulfuric acid, hydrochloric acid, phosphoric acid, perchloric acid and trifluoroacetic acid, and bases such as ammonia, pyridine, triethylamine, sodium hydroxide and potassium hydroxide can be added. Addition of acids is preferred, and hydrochloric acid is more preferred.
- the protecting group is an aralkoxycarbonyl group and an alkoxycarbonyl group.
- the protecting group (PG) is an aralkoxycarbonyl group such as a benzyloxycarbonyl group, and an alkoxycarbonyl group such as a t-butoxycarbonyl group. In some cases, it can be removed with an organic or inorganic acid.
- Examples of the acid that can be used include inorganic acids such as hydrochloric acid, sulfuric acid, hydrogen bromide trifluoromethanesulfonic acid and hydrogen iodide, and organic acids such as acetic acid, trifluoroacetic acid, trifluoromethanesulfonic acid and p-toluenesulfonic acid. Can be mentioned. Of these, hydrochloric acid is preferred.
- a solvent examples include water, methanol, ethanol, propanol, butanol, acetonitrile, dioxane, dichloromethane, chloroform, N, N-dimethylformamide, dimethyl sulfoxide, N-methylpyrrolidone, sulfolane, methyl ethyl ketone, tetrahydropyran, N, N— Mention may be made of dimethylformamide, dimethyl sulfoxide, N-methylpyrrolidone, sulfolane, methyl ethyl ketone and tetrahydropyran and mixtures thereof. Of these, water is preferred.
- the reaction temperature is usually preferably in the range of the boiling point of the solvent used from 0 ° C., more preferably in the range of the boiling point of the solvent used from room temperature.
- Step 2 After completion of the reaction in Step 2, it can be purified and isolated by using a conventional separation means (for example, extraction, recrystallization, chromatography, etc.) if desired.
- a conventional separation means for example, extraction, recrystallization, chromatography, etc.
- Solvents that can be used for purification by recrystallization include, for example, water, methanol, ethanol, ethyl acetate, 2-propanol, diisopropyl ether, acetonitrile, chloroform, N, N-dimethylformamide, dimethyl sulfoxide, and N-methylpyrrolidone. , Methyl ethyl ketone, tetrahydrofuran, tetrahydropyran and the like.
- alcohol, water and ethyl acetate are preferable, and ethanol, water and ethyl acetate are more preferable.
- These solvents can be used singly or in combination.
- the present invention is a method for producing (3R, 4S) -3- (N-substituted-aminomethyl) -4-fluoropyrrolidine or a stereoisomer thereof, or a salt thereof.
- the amino group [amino group bonded to R 1 in the compound represented by the general formula (1)] can be fluorinated without protection, the protective group Is unnecessary, and the number of steps is shorter than that of the conventional methods (International Publication No. 2003/0778439 (Patent Document 1) and International Publication No. 2007/102567 (Patent Document 4)).
- Patent Document 3 Compared with the synthesis method described in Japanese Patent Application Laid-Open No. 2005-239617 (Patent Document 3) in which all intermediates are oily substances, the production method of the present invention uses a compound represented by the general formula (2). In addition, the compound represented by the general formula (3) can be crystallized and easily purified.
- Non-patent Document 3 A method using a sulfur tetrafluoride derivative (International Publication No. 2006/13048 (Patent Document 7)), a method using sulfur tetrafluoride and liquefied hydrogen fluoride (Journal of Organic Chemistry, (1979), 44 (5). , 771-777. (Non-patent document 4) and Journal of Organic Chemistry, (1975), 44 (25), 3808-3809. (Non-patent document 5)).
- Non-patent Document 3 J. Chem. Res. , 246, 1983.
- the method described in (Non-patent Document 3) has a problem that the yield of the fluorination reaction is relatively good, but it takes several days to complete the reaction.
- the reaction is accelerated by the presence of water or a hydrogen fluoride reaction source, and the reaction time can be shortened within 24 hours.
- the amount of the fluorinating agent can be reduced by adding water or a hydrogen fluoride source, and the cost can be reduced.
- Patent Document 7 benzyl- (2-hydroxy) -ethylamine derivative is converted to benzyl 2-fluoroethylamine derivative using DAST which is a sulfur tetrafluoride derivative.
- DAST which is a sulfur tetrafluoride derivative.
- the yield is as low as 17%.
- fluorination proceeds with good yield.
- Non-Patent Document 4 Journal of Organic Chemistry, (1979), 44 (5), 771-777. (Non-Patent Document 4) and Journal of Organic Chemistry, (1975), 44 (25), 3808-3809.
- a low temperature reaction is required, and rearrangement of the fluorination position and reduction in optical purity due to racemization occur.
- low temperature conditions are not required, and rearrangement and racemization do not occur, and the desired steric compound (2) or a stereoisomer thereof, or a salt thereof can be obtained.
- the mixture was extracted with 2.45 L of ethyl acetate, the organic layer was washed with 2.45 L of saturated brine, 245 g of anhydrous sodium sulfate was added, and the mixture was stirred for 0.5 hr. After filtering off anhydrous sodium sulfate and washing the solid with 0.49 L of ethyl acetate, the filtrate and the washing were combined and concentrated under reduced pressure to obtain 454 g of the title compound as a colorless oil.
- the “equivalent” of the fluorinating agent and the additive is (3S, 4R) -3- (cyclopropylaminomethyl) -4-hydroxypyrrolidine-under the conditions described in Reference Examples. Assuming that benzyl 1-carboxylate hydrochloride was converted to benzyl (3S, 4R) -3- (cyclopropylaminomethyl) -4-hydroxypyrrolidine-1-carboxylate, (3S, 4R) -3- ( Calculations are based on the number of moles of benzyl cyclopropylaminomethyl) -4-hydroxypyrrolidine-1-carboxylate.
- double amount means (3S, 4R) -3- (cyclopropylaminomethyl) -4-hydroxypyrrolidine-1-carboxylate starting material (3S, 4R) ) -3- (Cyclopropylaminomethyl) -4-hydroxypyrrolidine-1-carboxylic acid benzyl hydrochloride means the volume (mL) of the solvent used and is calculated from the following formula. ing.
- Example 1 Benzyl (3S, 4R) -3- (cyclopropylaminomethyl) -4-hydroxypyrrolidine-1-carboxylate obtained by the method described in Reference Example was dissolved in a solvent (acetonitrile, 6 volumes). A fluorinating agent (Deoxo-Fluor, 4 equivalents) was added at an internal temperature of -5 to 5 ° C, and the mixture was stirred for 1 hour at an internal temperature of -5 to 5 ° C. And left overnight at room temperature (Table 1). The reaction solution was subjected to HPLC measurement. The results are shown in Table 7.
- Example 2 Benzyl (3S, 4R) -3- (cyclopropylaminomethyl) -4-hydroxypyrrolidine-1-carboxylate obtained by the method described in Reference Example was dissolved in a solvent (acetonitrile, 6 volumes). Next, an additive (triethylamine pentahydrofluoride, 2 equivalents) was added at an internal temperature of -5 to 10 ° C, and the mixture was stirred at an internal temperature of -5 to 5 ° C for 0.5 hour. Next, a fluorinating agent (Deoxo-Fluor) is added at an internal temperature of -5 to 5 ° C, and the mixture is stirred for 1 hour at an internal temperature of -5 to 5 ° C. And left overnight at room temperature (Table 1). The reaction solution was subjected to HPLC measurement. The results are shown in Table 7.
- Example 7 The reaction was performed in the same manner as in Example 2 using the fluorinating agent, additives, and solvent described in Table 1. The reaction solution was subjected to HPLC measurement. The results are shown in Table 7.
- Example 8 Benzyl (3S, 4R) -3- (cyclopropylaminomethyl) -4-hydroxypyrrolidine-1-carboxylate obtained by the method described in Reference Example was dissolved in acetonitrile (6 volumes). An appropriate amount of purified water was added to this solution (water content before adding purified water: 426 ppm) to prepare a sample solution having a moisture content of 1,194 ppm. The moisture value was measured by the Karl Fischer method. This water-containing sample solution was reacted in the same manner as in Example 1 (Table 2). The results are shown in Table 8.
- Example 9 Benzyl (3S, 4R) -3- (cyclopropylaminomethyl) -4-hydroxypyrrolidine-1-carboxylate obtained by the method described in Reference Example was dissolved in acetonitrile (6 volumes). An appropriate amount of purified water was added to this solution (water content before adding purified water: 426 ppm) to prepare a sample solution having a moisture content of 7,358 ppm. The moisture value was measured by the Karl Fischer method. This water-containing sample solution was reacted in the same manner as in Example 1 (Table 2). The results are shown in Table 8.
- Example 10 The reaction was carried out in the same manner as in Example 2 using the fluorinating agent, additive and solvent described in Table 2. The reaction solution was subjected to HPLC measurement. The results are shown in Table 8.
- Example 12 to 21 The reaction was carried out in the same manner as in Example 2 using the fluorinating agent, additives and solvent described in Table 3. The reaction solution was subjected to HPLC measurement. The results are shown in Table 9.
- Example 22 to 25 The reaction was performed in the same manner as in Example 1 using the fluorinating agent and solvent described in Table 4. The reaction solution was subjected to HPLC measurement. The results are shown in Table 10.
- Examples 26 to 29, 31 The reaction was performed in the same manner as in Example 2 using the fluorinating agent, additives and solvent described in Table 4. The reaction solution was subjected to HPLC measurement. The results are shown in Table 10.
- Example 30 The reaction was performed in the same manner as in Example 2 using the fluorinating agent, additives and solvent described in Table 4. However, the solvent used is 12 times the amount. The reaction solution was subjected to HPLC measurement. The results are shown in Table 10.
- Example 33 The reaction was carried out in the same manner as in Example 2 using the fluorinating agent, additive and solvent described in Table 5. However, the solvent used is 12 times the amount. The reaction solution was subjected to HPLC measurement. The results are shown in Table 11.
- Example 34 The reaction was carried out in the same manner as in Example 2 using the fluorinating agent, additive and solvent described in Table 5. However, the solvent used is 20 times the amount. The reaction solution was subjected to HPLC measurement. The results are shown in Table 11.
- Tables 7 to 11 show the results of Examples 1 to 35 and Comparative Examples 1 to 11.
- Reaction conversion rate (%) (Production amount of target product) / (Amount of raw material consumed by reaction) ⁇ 100 (%)
- HPLC is the area percentage (%) of the target product at the end of the reaction, and was calculated from the following equation.
- Area percentage of target product (%) (Production amount of target product) / (Total peak amount observed by HPLC excluding solvent peak) ⁇ 100
- Example 8 water (Examples 8 and 9) was used in the reaction system, and triethylamine pentahydrofluoride (Example 10) or hydrogen fluoride pyridine complex was used as the hydrogen fluoride source. It was found that the addition of (Example 11) accelerates the fluorination reaction compared to Example 1 in which no water or hydrogen fluoride source was added.
- the reaction solution was added to 12.3 L of ice water, and 5 mol / L sodium hydroxide solution was added at an internal temperature of 0 to 10 ° C. to adjust the pH to 9.5.
- the mixture was extracted with 12.3 L of ethyl acetate, washed with 4.90 L of saturated brine, added with 1.23 kg of anhydrous sodium sulfate, and stirred for 0.5 hours. After anhydrous magnesium sulfate was filtered off and washed with 0.98 L of ethyl acetate, the filtrate and washings were combined and concentrated under reduced pressure.
- the obtained residue (607 g, HPLC relative purity 58%) was dissolved in 0.98 L of toluene, charged onto 3.43 kg of NH silica gel filled with toluene, and distilled with toluene to collect fractions containing the desired product. Concentrated under reduced pressure.
- the residue (370 g, HPLC relative purity 77%) was dissolved in 2.45 L of ethyl acetate, 1.0 L of hydrogen chloride / methanol was added, and the mixture was stirred at room temperature.
- the reaction solution was added to 6.65 L of ice water, and 0.53 L of 6 mol / L hydrochloric acid was added to adjust the pH to 2.5.
- the mixture was washed with 2.13 L of toluene, and 5 mol / L potassium hydroxide solution was added to the aqueous layer at an internal temperature of 0 to 10 ° C. to adjust the pH to 9.8.
- the mixture was extracted twice with 7.98 L of toluene and 3.99 L, and the organic layers were combined, then washed with 2.66 L of saturated brine, 266 g of anhydrous magnesium sulfate was added, and the mixture was stirred for 0.5 hr. After anhydrous magnesium sulfate was filtered off and washed with 1.25 L of toluene, the filtrate and washings were combined and concentrated under reduced pressure.
- the obtained residue (265 g, HPLC relative purity 91%) was dissolved in 0.53 L of toluene, charged to 798 g of NH silica gel filled with toluene, distilled out with about 8 L of toluene, and the distillate was concentrated under reduced pressure.
- the residue (HPLC relative purity 95%) was dissolved in 1.33 L of ethyl acetate, 0.71 L of hydrogen chloride / methanol solution was added at room temperature, and then heated, and 5.32 L of diisopropyl ether was added at an internal temperature of 35 to 45 ° C. In addition, after crystal crystallization, the mixture was stirred for 15 minutes at a temperature near the crystallization.
- the precipitated solid was collected by filtration and washed with 639 mL of an ethyl acetate-ethanol mixture (1: 1). It dried under reduced pressure at 50 degreeC and obtained 137g (91%) of the rough crystal
- This oil was dissolved in 80.0 mL of acetonitrile, concentrated under reduced pressure, and then dissolved in 120 mL of dehydrated acetonitrile.
- the mixture was cooled, 87 mL (492 mmol) of bis (2-methoxyethyl) aminosulfur trifluoride (Deoxo-Fluor) was added dropwise at an internal temperature of ⁇ 27 to ⁇ 4 ° C., and the internal temperature was ⁇ 15 to ⁇ 5 ° C. for 1 hour. After stirring, the temperature was gradually raised, and the mixture was stirred at an internal temperature of 20 to 25 ° C. for 2 days.
- the reaction solution was added to 1.0 L of ice water, and 423 g of 5 mol / L sodium hydroxide solution was added at an internal temperature of 18 ° C. or lower to adjust the pH to 9.5.
- the mixture was extracted with 1.0 L of ethyl acetate, washed with 500 mL of saturated brine, then added with 100 g of anhydrous sodium sulfate and 10.0 g of activated carbon, and stirred at room temperature for 2 hours.
- the solid was filtered off and washed with 120 mL of ethyl acetate, and then the filtrate and the washing solution were combined and concentrated under reduced pressure.
- the resulting crude crystals (8.40 g) were heated by adding 42 mL of ethanol, and 4.2 mL of purified water was added and dissolved at an internal temperature of around 70 ° C. After cooling and crystallization (crystallization started at an internal temperature of 43 ° C.), the mixture was stirred at a temperature near the crystallization for 10 minutes, and then stirred at an internal temperature of 38 to 45 ° C. for 30 minutes. Stir at 45-50 ° C. for 0.5 hour. The mixture was cooled and stirred at an internal temperature of 20 ° C. or lower for 0.5 hours. The precipitated crystals were collected by filtration and washed with 26 mL of an ethyl acetate-ethanol mixture (1: 1). The wet crystals were blown and dried at 50 ° C. to obtain 7.85 g (86%) of the title compound of a light brown prism.
- the present invention is a method for producing (3R, 4S) -3-cyclopropylaminomethyl-4-fluoropyrrolidine or an enantiomer thereof, or a salt thereof, which can be an intermediate for the production of pharmaceuticals, at an inexpensive and industrially advantageous cost. is there.
- 7- (3-cyclopropylaminomethyl-4-fluoropyrrolidinyl) quinolonecarboxylic acid which exhibits a safe and strong antibacterial action and is effective against resistant bacteria in which conventional antibacterial agents are less effective.
- Derivatives can be advantageously produced industrially and are useful.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Animal Behavior & Ethology (AREA)
- Pharmacology & Pharmacy (AREA)
- Oncology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Communicable Diseases (AREA)
- Epidemiology (AREA)
- Pyrrole Compounds (AREA)
- Plural Heterocyclic Compounds (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Description
1.下記一般式(1)で示される4-ヒドロキシ-3-(N-置換-アミノメチル)ピロリジン誘導体又はその鏡像異性体を、四フッ化硫黄誘導体を用いてフッ素化するフッ素化工程を含む、下記一般式(2)で表される化合物若しくはその鏡像異性体、またはそれらの塩の製造方法。
2.前記フッ素化工程後、酸を加え、一般式(2)で表される化合物の塩またはその鏡像異性体の塩を得た後、さらに該塩を精製する工程を含む、HPLC相対純度が98%以上の一般式(2)で表される化合物の塩またはその鏡像異性体の塩を製造する前項1に記載の製造方法。
3.工程1および工程2を含む、下記一般式(3)で表される化合物若しくはその鏡像異性体、またはそれらの塩の製造方法。
(工程1)下記一般式(1)で示される4-ヒドロキシ-3-(N-置換-アミノメチル)ピロリジン誘導体又はその鏡像異性体を、四フッ化硫黄誘導体を用いてフッ素化することにより、下記一般式(2)で示される化合物若しくはその鏡像異性体、またはそれらの塩、を得るフッ素化工程
(工程2)工程1で得られた下記一般式(2)で表される化合物若しくはその鏡像異性体、またはそれらの塩のアミノ基上の保護基を脱保護することにより下記一般式(3)で示される化合物若しくはその鏡像異性体、またはそれらの塩を得る脱保護工程
4.フッ素化工程において、水またはフッ化水素源を添加することを特徴とする、前項1~3のいずれか1項に記載の製造方法。
5.フッ素化工程において、水またはフッ化水素源を添加した後に、四フッ化硫黄誘導体を加えることを特徴とする前項1~4のいずれか1項に記載の製造方法。
6.フッ化水素源がフッ化水素ピリジン錯体またはトリエチルアミン五フッ化水素酸塩である前項4または5に記載の製造方法。
7.フッ化水素源が、トリエチルアミン五フッ化水素酸塩である、前項4~6のいずれか1項に記載の製造方法。
8.フッ素化工程において、一般式(1)で示される4-ヒドロキシ-3-(N-置換-アミノメチル)ピロリジン誘導体又はその鏡像異性体に対して、フッ化水素源を3当量以上用いることを特徴とする前項1~7のいずれか1項に記載の製造方法。
9.フッ素化工程において、一般式(1)で示される4-ヒドロキシ-3-(N-置換-アミノメチル)ピロリジン誘導体又はその鏡像異性体に対して、フッ化水素源を4当量以上用いることを特徴とする前項1~8のいずれか1項に記載の製造方法。
10.四フッ化硫黄誘導体がビス(2-メトキシエチル)アミノ硫黄トリフルオリド(Deoxo-Fluor)である、前項1~9のいずれか1項に記載の製造方法。
11.PGで表されるアミノ基の保護基が、アルコキシカルボニル基またはアラルコキシカルボニル基である前項1~10のいずれか1項に記載の製造方法。
12.PGで表されるアミノ基の保護基が、ベンジルオキシカルボニル基である前項11に記載の製造方法。
13.R1がシクロプロピル基である、前項1~12のいずれか1項に記載の製造方法。
14.PGで表されるアミノ基の保護基が、ベンジルオキシカルボニル基であり、R1がシクロプロピル基である前項1~10のいずれか1項に記載の製造方法。
15.一般式(2)で示される化合物の塩酸塩、又はその鏡像異性体の塩酸塩。
(工程1)前記一般式(1)で示される4-ヒドロキシ-3-(N-置換-アミノメチル)ピロリジン誘導体又はその鏡像異性体を、四フッ化硫黄誘導体を用いてフッ素化することにより、前記一般式(2)で示される化合物若しくはその鏡像異性体、またはそれらの塩、を得るフッ素化工程
(工程2)工程1で得られた前記一般式(2)で表される化合物若しくはその鏡像異性体、またはそれらの塩のアミノ基上の保護基を脱保護することにより下記一般式(3)で示される化合物若しくはその鏡像異性体、またはそれらの塩を得る脱保護工程
工程1は、上記一般式(1)で示される4-ヒドロキシ-3-(N-置換-アミノメチル)ピロリジン誘導体又はその鏡像異性体を、四フッ化硫黄誘導体を用いてフッ素化することにより、上記一般式(1)で示される化合物又はその鏡像異性体の水酸基をフッ素基に変換する工程である。
工程2は、工程1で得られた上記一般式(2)で表される化合物若しくはその鏡像異性体、またはそれらの塩のアミノ基上の保護基(PG)を脱保護して除去することにより、上記一般式(3)で示される化合物若しくはその鏡像異性体、またはそれらの塩を得る脱保護工程である。
工程2において、一般式(2)で表される化合物若しくはその鏡像異性体、またはそれらの塩のアミノ基上の保護基の除去は、文献記載の方法を適宜採用して行うことができる(Green,T.W.;Wuts,P.G.M.“Protective Groups in Organic Synthesis”,2nd Ed.,Wiley Interscience Publication,John-Weiley&Sons,New York,1991,p309-348.)。
例えば、保護基(PG)がベンジルオキシカルボニル基などのアラルコキシカルボニル基、並びにベンジル基およびパラメトキシベンジル基などのアラルキル基である場合、水素源存在下、接触水素添加により除去できる。
(3S,4R)-3-(シクロプロピルアミノメチル)-4-ヒドロキシピロリジン-1-カルボン酸ベンジル
参考例記載の方法により得られた、(3S,4R)-3-(シクロプロピルアミノメチル)-4-ヒドロキシピロリジン-1-カルボン酸ベンジルを溶媒(アセトニトリル、6倍量)に溶解した。内温-5~5℃でフッ素化剤(Deoxo-Fluor、4当量)を加え、内温-5~5℃で1時間撹拌した後、昇温し、内温10~20℃で7時間撹拌し、室温で一夜放置した(表1)。この反応液のHPLC測定を行った。その結果を表7に示す。
参考例記載の方法により得られた、(3S,4R)-3-(シクロプロピルアミノメチル)-4-ヒドロキシピロリジン-1-カルボン酸ベンジルを溶媒(アセトニトリル、6倍量)に溶解した。次に内温-5~10℃で添加剤(トリエチルアミン五フッ化水素酸塩、2当量)を加え、内温-5~5℃で0.5時間撹拌した。次に内温-5~5℃でフッ素化剤(Deoxo-Fluor)を加え、内温-5~5℃で1時間撹拌した後、昇温し、内温10~20℃で7時間撹拌し、室温で一夜放置した(表1)。この反応液のHPLC測定を行った。その結果を表7に示す。
表1に記載のフッ素化剤、添加剤、溶媒を使用して、実施例2と同様の方法で、反応を行った。この反応液のHPLC測定を行った。その結果を表7に示す。
参考例記載の方法により得られた、(3S,4R)-3-(シクロプロピルアミノメチル)-4-ヒドロキシピロリジン-1-カルボン酸ベンジルをアセトニトリル(6倍量)に溶解した。この溶液(精製水添加前の水分含有率:426ppm)に精製水を適量添加し、水分量が1,194ppmのサンプル溶液を調整した。なお、水分値はカールフィシャー法で測定した。この水分含有サンプル溶液を実施例1と同様な方法で反応を行った(表2)。その結果を表8に示す。
参考例記載の方法により得られた、(3S,4R)-3-(シクロプロピルアミノメチル)-4-ヒドロキシピロリジン-1-カルボン酸ベンジルをアセトニトリル(6倍量)に溶解した。この溶液(精製水添加前の水分含有率:426ppm)に精製水を適量添加し、水分量が7,358ppmのサンプル溶液を調整した。なお、水分値はカールフィシャー法で測定した。この水分含有サンプル溶液を実施例1と同様な方法で反応を行った(表2)。その結果を表8に示す。
表2に記載のフッ素化剤、添加剤、溶媒を使用して、実施例2と同様の方法で、反応を行った。この反応液のHPLC測定を行った。その結果を表8に示す。
表3に記載のフッ素化剤、添加剤、溶媒を使用して、実施例2と同様の方法で、反応を行った。この反応液のHPLC測定を行った。その結果を表9に示す。
表4に記載のフッ素化剤および溶媒を使用して、実施例1と同様の方法で、反応を行った。この反応液のHPLC測定を行った。その結果を表10に示す。
表4に記載のフッ素化剤、添加剤および溶媒を使用して、実施例2と同様の方法で、反応を行った。この反応液のHPLC測定を行った。その結果を表10に示す。
表4に記載のフッ素化剤、添加剤および溶媒を使用して、実施例2と同様の方法で、反応を行った。但し、使用した溶媒は、12倍量である。この反応液のHPLC測定を行った。その結果を表10に示す。
参考例記載の方法により得られた、(3S,4R)-3-(シクロプロピルアミノメチル)-4-ヒドロキシピロリジンに、氷水冷却下、激しく撹拌しながら(トリエチルアミン五フッ化水素酸塩、4当量)を滴下した。次に、ビス(2-メトキシエチル)アミノ硫黄トリフルオリド(Deoxo-Fluor)(1.2当量)を加え、内温-5~5℃で1時間撹拌した後、昇温し、内温10~20℃で7時間撹拌し、室温で一夜放置した(表4)。この反応液のHPLC測定を行った。その結果を表10に示す。
表5に記載のフッ素化剤、添加剤および溶媒を使用して、実施例2と同様の方法で、反応を行った。但し、使用した溶媒は、12倍量である。この反応液のHPLC測定を行った。その結果を表11に示す。
表5に記載のフッ素化剤、添加剤および溶媒を使用して、実施例2と同様の方法で、反応を行った。但し、使用した溶媒は、20倍量である。この反応液のHPLC測定を行った。その結果を表11に示す。
表6に記載のフッ素化剤および溶媒を使用して、実施例1と同様の方法で、反応を行った。この反応液のHPLC測定を行った。その結果を表7に示す。
表6に記載のフッ素化剤、添加剤および溶媒を使用して、実施例2と同様の方法で、反応を行った。この反応液のHPLC測定を行った。その結果を表7に示す。
フッ素化剤として、Deoxo-Fluor(1.2当量)、添加剤として、トリエチルアミン三フッ化水素酸塩(4.0当量)、溶媒としてトルエンを使用して、実施例2と同様の方法で、反応を行った。この反応液のHPLC測定を行った。その結果を表8に示す。
カラム:ジーエルサイエンス Inertsil ODS-3、4.6mm×150mm
プレカラム:ジーエルサイエンス Inertsil ODS-3、4.0mm×10mm
移動相:薄めたリン酸(1→1000)(A液)、アセトニトリル(B液)
0~10分;A液:B液=80:20から65:35にリニアグラジェント
10~20分;A液:B液=65:35から5:95にリニアグラジェント
20~30分;A液:B液=5:95
測定波長:210nm
カラム温度:30℃
流量:1.0mL/min
目的物;11分付近
ここで、薄めたリン酸(1→1000)とは、リン酸1mLをHPLC用精製水に溶解し1000mLとした意味である。
(3S,4S)-3-(シクロプロピルアミノメチル)-4-フルオロピロリジン-1-カルボン酸ベンジル塩酸塩
ESI-MS(positive) m/z:293[M+H-HCl]+
Anal.Calcd for C16H22ClFN2O2:C,58.44;H,6.74;N,8.52.Found:C,58.12;H,6.68;N,8.43.
(3S,4S)-3-(シクロプロピルアミノメチル)-4-フルオロピロリジン-1-カルボン酸ベンジル塩酸塩
ESI-MS(positive) m/z:293[M+H-HCl]+
Anal.Calcd for C16H22ClFN2O2:C,58.44;H,6.74;N,8.52.Found:C,58.18;H,6.67;N,8.54.
(3R,4S)-3-(シクロプロピルアミノメチル)-4-フルオロピロリジン二塩酸塩
[α]D 22-19.7(c 0.3,H2O).
CI-MS(positive) m/z:159[M+H]+
Anal.Calcd for C8H17Cl2FN2:C,41.57;H,7.41;N,12.12.Found:C,41.43;H,7.45;N,12.08.
(3R,4S)-3-(シクロプロピルアミノメチル)-4-フルオロピロリジン二塩酸塩
1H-NMR(DMSO-d6,400MHz)δ:0.69-0.82(2H,m),0.92-1.07(2H,m),2.65-2.91(2H,m),3.06(1H,t,J=11.7Hz),3.13(1H,dd,J=7.2,12.8Hz),3.30(1H,dd,J=6.1,12.8Hz),3.43-3.58(2H,m),3.62(1H,dd,J=8.3,11.5Hz),5.37-5.61(1H,m),9.80(4H,br s).
(3R,4R)-3-(シクロプロピルアミノメチル)-4-フルオロピロリジン-1-カルボン酸ベンジル塩酸塩
ESI-MS(positive) m/z:293[M+H-HCl]+
(3S,4R)-3-(シクロプロピルアミノメチル)-4-フルオロピロリジン二塩酸塩
[α]D 23+21.7(c 0.3,H2O).
Claims (16)
- 前記フッ素化工程後、酸を加え、一般式(2)で表される化合物の塩またはその鏡像異性体の塩を得た後、さらに該塩を精製する工程を含む、HPLC相対純度が98%以上の一般式(2)で表される化合物の塩またはその鏡像異性体の塩を製造する請求項1に記載の製造方法。
- 工程1および工程2を含む、下記一般式(3)で表される化合物若しくはその鏡像異性体、またはそれらの塩の製造方法。
(工程1)下記一般式(1)で示される4-ヒドロキシ-3-(N-置換-アミノメチル)ピロリジン誘導体又はその鏡像異性体を、四フッ化硫黄誘導体を用いてフッ素化することにより、下記一般式(2)で示される化合物若しくはその鏡像異性体、またはそれらの塩、を得るフッ素化工程
(工程2)工程1で得られた下記一般式(2)で表される化合物若しくはその鏡像異性体、またはそれらの塩のアミノ基上の保護基を脱保護することにより下記一般式(3)で示される化合物若しくはその鏡像異性体、またはそれらの塩を得る脱保護工程
- フッ素化工程において、水またはフッ化水素源を添加することを特徴とする、請求項1~3のいずれか1項に記載の製造方法。
- フッ素化工程において、水またはフッ化水素源を添加した後に、四フッ化硫黄誘導体を加えることを特徴とする請求項1~4のいずれか1項に記載の製造方法。
- フッ化水素源がフッ化水素ピリジン錯体またトリエチルアミン五フッ化水素酸塩である請求項4または5に記載の製造方法。
- フッ化水素源が、トリエチルアミン五フッ化水素酸塩である、請求項4~6のいずれか1項に記載の製造方法。
- フッ素化工程において、一般式(1)で示される4-ヒドロキシ-3-(N-置換-アミノメチル)ピロリジン誘導体又はその鏡像異性体に対して、フッ化水素源を3当量以上用いることを特徴とする請求項1~7のいずれか1項に記載の製造方法。
- フッ素化工程において、一般式(1)で示される4-ヒドロキシ-3-(N-置換-アミノメチル)ピロリジン誘導体又はその鏡像異性体に対して、フッ化水素源を4当量以上用いることを特徴とする請求項1~8のいずれか1項に記載の製造方法。
- 四フッ化硫黄誘導体がビス(2-メトキシエチル)アミノ硫黄トリフルオリド(Deoxo-Fluor)である、請求項1~9のいずれか1項に記載の製造方法。
- PGで表されるアミノ基の保護基が、アルコキシカルボニル基またはアラルコキシカルボニル基である請求項1~10のいずれか1項に記載の製造方法。
- PGで表されるアミノ基の保護基が、ベンジルオキシカルボニル基である請求項11に記載の製造方法。
- R1がシクロプロピル基である、請求項1~12のいずれか1項に記載の製造方法。
- PGで表されるアミノ基の保護基が、ベンジルオキシカルボニル基であり、R1がシクロプロピル基である請求項1~10のいずれか1項に記載の製造方法。
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NZ601080A NZ601080A (en) | 2010-01-08 | 2011-01-07 | Method for producing 3,4-disubstituted pyrrolidine derivative and production intermediate thereof |
BRBR112012016856-8A BR112012016856A2 (pt) | 2010-01-08 | 2011-01-07 | "método para produzir um derivado de pirrolidina 3,4-dissubstituído e produção de intermediários do mesmo." |
US13/520,875 US20120283448A1 (en) | 2010-01-08 | 2011-01-07 | Method for producing 3,4-disubstituted pyrrolidine derivative and production intermediate thereof |
CN2011800055329A CN102695698A (zh) | 2010-01-08 | 2011-01-07 | 3,4-二取代吡咯烷衍生物的生产方法及其生产中间体 |
AU2011204131A AU2011204131B2 (en) | 2010-01-08 | 2011-01-07 | Method for producing 3,4-disubstituted pyrrolidine derivative and production intermediate thereof |
EP11731856.8A EP2524911A4 (en) | 2010-01-08 | 2011-01-07 | PROCESS FOR PREPARING A 3,4-DISUBSTITUTED PYRROLIDINE DERIVATIVE AND INTERMEDIATE PRODUCT THEREOF |
SG2012049623A SG182370A1 (en) | 2010-01-08 | 2011-01-07 | Method for producing 3,4-disubstituted pyrrolidine derivative and production intermediate thereof |
CA2786646A CA2786646A1 (en) | 2010-01-08 | 2011-01-07 | Method for producing 3,4-disubstituted pyrrolidine derivative and production intermediate thereof |
MX2012007934A MX2012007934A (es) | 2010-01-08 | 2011-01-07 | Metodo para producir un derivado de pirrolidina 3,4-disustituido, e intermediario de produccion del mismo. |
JP2011549038A JPWO2011083858A1 (ja) | 2010-01-08 | 2011-01-07 | 3,4−ジ置換ピロリジン誘導体の製造方法及び製造中間体 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010-002665 | 2010-01-08 | ||
JP2010002665 | 2010-01-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011083858A1 true WO2011083858A1 (ja) | 2011-07-14 |
Family
ID=44305593
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2011/050206 WO2011083858A1 (ja) | 2010-01-08 | 2011-01-07 | 3,4-ジ置換ピロリジン誘導体の製造方法及び製造中間体 |
Country Status (12)
Country | Link |
---|---|
US (1) | US20120283448A1 (ja) |
EP (1) | EP2524911A4 (ja) |
JP (1) | JPWO2011083858A1 (ja) |
KR (1) | KR20120112769A (ja) |
CN (1) | CN102695698A (ja) |
AU (1) | AU2011204131B2 (ja) |
BR (1) | BR112012016856A2 (ja) |
CA (1) | CA2786646A1 (ja) |
MX (1) | MX2012007934A (ja) |
NZ (1) | NZ601080A (ja) |
SG (1) | SG182370A1 (ja) |
WO (1) | WO2011083858A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115745953B (zh) * | 2022-06-29 | 2024-06-11 | 上海凌凯医药科技有限公司 | 一种羟基氟代试剂及羟基氟代方法 |
CN115448896A (zh) * | 2022-10-24 | 2022-12-09 | 江苏阿尔法药业股份有限公司 | 一种索非布韦中间体的制备方法 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61189281A (ja) * | 1985-02-15 | 1986-08-22 | Dainippon Pharmaceut Co Ltd | ピリドンカルボン酸誘導体、そのエステルおよびその塩 |
JPS61282382A (ja) * | 1985-06-06 | 1986-12-12 | Dainippon Pharmaceut Co Ltd | フエニル置換1,8−ナフチリジン誘導体、そのエステルおよびその塩 |
WO2002083636A1 (fr) * | 2001-04-06 | 2002-10-24 | Eisai Co., Ltd. | Derive de pyrolidine et son procede d'obtention |
WO2003078439A1 (fr) * | 2002-03-18 | 2003-09-25 | Kyorin Pharmaceutical Co., Ltd. | Derive d'acide 10-(3-cyclopropylaminomethyl-1-pyrrolidinyl)pyridobenzoxazinecarboxylique efficace contre les bacteries resistantes |
JP2007511597A (ja) * | 2003-11-18 | 2007-05-10 | ワーナー−ランバート カンパニー リミテッド ライアビリティー カンパニー | 抗菌アミノキナゾリヂンヂオン誘導体 |
WO2007102567A1 (ja) * | 2006-03-09 | 2007-09-13 | Kyorin Pharmaceutical Co., Ltd. | 3,4-ジ置換ピロリジン誘導体の製造方法及び製造中間体 |
JP2008502689A (ja) * | 2004-06-15 | 2008-01-31 | グラクソ グループ リミテッド | 抗菌剤 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU578793B2 (en) * | 1985-02-15 | 1988-11-03 | Dainippon Pharmaceutical Co. Ltd. | Novel 1,8-naphthyridine derivatives and processes for preparation thereof |
-
2011
- 2011-01-07 CA CA2786646A patent/CA2786646A1/en not_active Abandoned
- 2011-01-07 KR KR1020127020692A patent/KR20120112769A/ko not_active Application Discontinuation
- 2011-01-07 WO PCT/JP2011/050206 patent/WO2011083858A1/ja active Application Filing
- 2011-01-07 EP EP11731856.8A patent/EP2524911A4/en not_active Withdrawn
- 2011-01-07 CN CN2011800055329A patent/CN102695698A/zh active Pending
- 2011-01-07 BR BRBR112012016856-8A patent/BR112012016856A2/pt not_active IP Right Cessation
- 2011-01-07 AU AU2011204131A patent/AU2011204131B2/en not_active Ceased
- 2011-01-07 SG SG2012049623A patent/SG182370A1/en unknown
- 2011-01-07 JP JP2011549038A patent/JPWO2011083858A1/ja not_active Withdrawn
- 2011-01-07 US US13/520,875 patent/US20120283448A1/en not_active Abandoned
- 2011-01-07 NZ NZ601080A patent/NZ601080A/en not_active IP Right Cessation
- 2011-01-07 MX MX2012007934A patent/MX2012007934A/es not_active Application Discontinuation
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61189281A (ja) * | 1985-02-15 | 1986-08-22 | Dainippon Pharmaceut Co Ltd | ピリドンカルボン酸誘導体、そのエステルおよびその塩 |
JPS61282382A (ja) * | 1985-06-06 | 1986-12-12 | Dainippon Pharmaceut Co Ltd | フエニル置換1,8−ナフチリジン誘導体、そのエステルおよびその塩 |
WO2002083636A1 (fr) * | 2001-04-06 | 2002-10-24 | Eisai Co., Ltd. | Derive de pyrolidine et son procede d'obtention |
WO2003078439A1 (fr) * | 2002-03-18 | 2003-09-25 | Kyorin Pharmaceutical Co., Ltd. | Derive d'acide 10-(3-cyclopropylaminomethyl-1-pyrrolidinyl)pyridobenzoxazinecarboxylique efficace contre les bacteries resistantes |
JP2007511597A (ja) * | 2003-11-18 | 2007-05-10 | ワーナー−ランバート カンパニー リミテッド ライアビリティー カンパニー | 抗菌アミノキナゾリヂンヂオン誘導体 |
JP2008502689A (ja) * | 2004-06-15 | 2008-01-31 | グラクソ グループ リミテッド | 抗菌剤 |
WO2007102567A1 (ja) * | 2006-03-09 | 2007-09-13 | Kyorin Pharmaceutical Co., Ltd. | 3,4-ジ置換ピロリジン誘導体の製造方法及び製造中間体 |
Non-Patent Citations (3)
Title |
---|
J.ORG.CEHM., vol. 75, no. 10, 2010, pages 3401 - 3411, XP008158944 * |
J.ORG.CHEM., vol. 82, 1960, pages 543 - 551 * |
See also references of EP2524911A4 * |
Also Published As
Publication number | Publication date |
---|---|
SG182370A1 (en) | 2012-08-30 |
NZ601080A (en) | 2014-03-28 |
AU2011204131B2 (en) | 2014-05-08 |
MX2012007934A (es) | 2012-11-06 |
EP2524911A1 (en) | 2012-11-21 |
KR20120112769A (ko) | 2012-10-11 |
AU2011204131A1 (en) | 2012-07-26 |
EP2524911A4 (en) | 2013-09-11 |
BR112012016856A2 (pt) | 2015-09-01 |
JPWO2011083858A1 (ja) | 2013-05-16 |
CN102695698A (zh) | 2012-09-26 |
CA2786646A1 (en) | 2011-07-14 |
US20120283448A1 (en) | 2012-11-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5852573B2 (ja) | 1−トリアゾール−2−ブタノール誘導体の製造法 | |
EP2546256B1 (en) | Process for the synthesis of E1 activating enzyme inhibitors | |
RU2621725C2 (ru) | Способ получения 1-([1,3]диоксолан-4-илметил)-1н-пиразол-3-иламина | |
EP0928787B1 (en) | Process for the preparation of 3-amino-pyrrolidine derivatives | |
EA018376B1 (ru) | Новые хиральные промежуточные продукты, способ их получения и их применение в производстве толтеродина, фезотеродина или их активных метаболитов | |
JP5430699B2 (ja) | ヘキサヒドロフロフラノール誘導体の製造方法 | |
WO2011083858A1 (ja) | 3,4-ジ置換ピロリジン誘導体の製造方法及び製造中間体 | |
JP5932641B2 (ja) | 3−置換−4−フルオロピロリジン誘導体の製造方法 | |
KR20010042750A (ko) | 거울상 이성질체-유리n-메틸-n-[(1s)-1-페닐-2-((3s)-3-히드록시피롤리딘-1-일)에틸]-2,2-디페닐아세트아미드의 제조 방법 | |
WO2012022994A1 (en) | Preparation process of vildagliptin | |
JP5191385B2 (ja) | コハク酸ジエステル誘導体、その製造法および医薬製造における該誘導体の使用 | |
EP1188744B1 (en) | Process for producing optically active 1H-3-aminopyrrolidine and derivatives thereof | |
JP5844739B2 (ja) | 3,4−二置換ピロリジン誘導体の製造方法 | |
JP5127156B2 (ja) | ヘキサヒドロフロフラノール誘導体の製造方法 | |
Bell et al. | Synthesis and Analgesic Activity of C-3-Allyl (and 3-Propyl)-1, 3-Dimethyl-4-Phenylpiperidin-R-4-Yl Propanoates | |
KR20050012408A (ko) | 질소가 이중치환된 7-아미노-3,5-디하이드록시 헵탄산유도체의 제조방법 | |
JP2008169160A (ja) | ピペリジン化合物、およびその中間体の製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 11731856 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2011549038 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2011204131 Country of ref document: AU |
|
ENP | Entry into the national phase |
Ref document number: 2786646 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13520875 Country of ref document: US Ref document number: MX/A/2012/007934 Country of ref document: MX |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2011204131 Country of ref document: AU Date of ref document: 20110107 Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 20127020692 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2011731856 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112012016856 Country of ref document: BR |
|
ENP | Entry into the national phase |
Ref document number: 112012016856 Country of ref document: BR Kind code of ref document: A2 Effective date: 20120709 |